2003 Subaru Forester XS, AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Body: Removal

  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G02945128Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the air cleaner case. Refer to REMOVAL , Air Cleaner Case.
  3. Disconnect the accelerator cable (A).
  4. Disconnect the cruise control cable (B). (With cruise control model)
    Fig 2: Locating Accelerator & Cruise Control Cable For Disconnection
    G02945129Courtesy of SUBARU OF AMERICA, INC.
  5. Disconnect the connectors from idle air control solenoid valve, throttle position sensor and pressure sensor.
  6. Disconnect the air by-pass hose from the throttle body.
    Fig 3: Locating Sensor & Hose For Disconnection
    G02945130Courtesy of SUBARU OF AMERICA, INC.
    1. Throttle position sensor
    2. Pressure sensor
    3. Idle air control solenoid valve
    4. Air by-pass hose
  7. Disconnect the engine coolant hoses (A) from the throttle body.
  8. Remove the bolts (B) which install throttle body to the intake manifold.
    Fig 4: Locating Bolts For Removal
    G02945131Courtesy of SUBARU OF AMERICA, INC.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.